CODEWITHSUNDEEP
c#.netpath
Matt
Matt

Reputation: 1704

How do I see Path.InvalidPathCharacters as, well, characters?

I want to output a human-readable list of invalid path characters as understood by .NET's runtime.

I've tried both Linqpad and a simple Console.WriteLine(Path.GetInvalidPathChars) console application, but both display certain characters illegibly. Apparently, this is expected.

console output illegible

MSDN's documentation:

Note: Some characters may not be displayable on the console.

Is the documentation telling me I can't get a human-readable version of these characters?

Upvotes: 1

Views: 181

Answers (2)

Mateusz Krzaczek
Mateusz Krzaczek

Reputation: 614

Some characters does not have any visual representation that can be written in regular console. I would do something like this:

var chars = Path.GetInvalidPathChars().Select(x => (int)x);
foreach (char c in Path.GetInvalidPathChars())
{
    Console.WriteLine("(char)" + (int)c + ": " + c );
}

Upvotes: 3

Patrick Hofman
Patrick Hofman

Reputation: 157038

Yes, some characters are invalid though not readable. For example the null terminator character \0 has no visible representation. Some fonts will render such characters as a question mark box, some have quite funny ways of (not) showing it.

Bottom line is, you have to replace those characters by some 'human readable' text, instead of their visual representation.

Upvotes: 1

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